Families

Tanning and libido peptides

Melanocortin peptides that darken skin and, in some people, raise sexual desire. One is an approved drug for a rare light-sensitivity disease and one for low desire in women; the grey-market ones carry real safety signals.

1. AAfamelanotideFDA approvedMore pain-free time in sunlight in 168 adults. No trials back tanning.
2. BBremelanotideFDA approvedIn 1,267 women, small gains on questionnaires. No rise in satisfying sex. Nausea in about 40%.
3. BMelanotan INot approvedIt darkened skin and cut sun damage in 65 people. The approved form treats a rare disease.
4. BPT-141Not approvedIn 1,267 women it gave small gains. For men there are only two small 2004 studies.
5. CMelanotan IINot approvedA 1996 study of 3 men: darker skin, erections and nausea. Case reports of harm since.

Grades are per compound, for the use it is best known for. How grades work.